- Serious fight on evolutionary theory ground. The bulk of evolutionary theorists seem to be set on taking Nowak et al to the guillotine, but there is also a small minority of fans: among them, my former Tinbergen Institute colleague Matthijs van Veelen (see a picture of him from when he was older, wiser, sporting a big white beard; NB: yours truly is the junior black-and-yellow fellow at his left, learning on the job) and his co-authors have a nice correspondence in Nature supporting Novak et al.